alan@lxorguk.ukuu.org.uk (Alan Cox) wrote on 29.10.96 in <m0vIMQr-0005KgC@lightning.swansea.linux.org.uk>:

> People take that further at the high end continous running systems as you> install a kernel upgrade, save the entire system state to swap, switch> to the new kernel and recover it - with no down time and not even dropping> network connections.

Of course, this seriously limits the kind of kernel upgrades you can do (to those that can still understand the old system state).